You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
108 lines
3.1 KiB
108 lines
3.1 KiB
---
|
|
layout: page
|
|
title: "More features"
|
|
description: "Undocumented features & more"
|
|
category: docs
|
|
order: 16
|
|
date: 2018-12-20 20:41:20
|
|
disqus: 1
|
|
---
|
|
|
|
### Extra controls
|
|
|
|
```xml
|
|
<com.otaliastudios.cameraview.CameraView
|
|
app:cameraPlaySounds="true|false"
|
|
app:cameraGrid="off|draw3x3|draw4x4|drawPhi"
|
|
app:cameraGridColor="@color/black"
|
|
app:cameraAutoFocusResetDelay="0"
|
|
app:cameraUseDeviceOrientation="true"/>
|
|
```
|
|
|
|
##### cameraPlaySounds
|
|
|
|
Controls whether we should play platform-provided sounds during certain events
|
|
(shutter click, focus completed). Please note that:
|
|
|
|
- on API < 16, this flag is always set to `false`
|
|
- the Camera1 engine will always play shutter sounds regardless of this flag
|
|
|
|
Defaults to true.
|
|
|
|
```java
|
|
cameraView.setPlaySounds(true);
|
|
cameraView.setPlaySounds(false);
|
|
```
|
|
|
|
##### cameraGrid
|
|
|
|
Lets you draw grids over the camera preview. Supported values are `off`, `draw3x3` and `draw4x4`
|
|
for regular grids, and `drawPhi` for a grid based on the golden ratio constant, often used in photography.
|
|
Defaults to `OFF`.
|
|
|
|
```java
|
|
cameraView.setGrid(Grid.OFF);
|
|
cameraView.setGrid(Grid.DRAW_3X3);
|
|
cameraView.setGrid(Grid.DRAW_4X4);
|
|
cameraView.setGrid(Grid.DRAW_PHI);
|
|
```
|
|
|
|
##### cameraGridColor
|
|
|
|
Lets you choose the color for grid lines.
|
|
Defaults to a shade of grey.
|
|
|
|
```java
|
|
cameraView.setGridColor(Color.WHITE);
|
|
cameraView.setGridColor(Color.BLACK);
|
|
```
|
|
|
|
##### cameraUseDeviceOrientation
|
|
|
|
Controls whether we should consider the device orientation for picture and video outputs.
|
|
This defaults to true, but can be set to false for specific usages, where you don't want the
|
|
output to be rotated based on the device rotation at the moment of capturing.
|
|
Defaults to true.
|
|
|
|
```java
|
|
cameraView.setUseDeviceOrientation(true); // rotate media
|
|
cameraView.setUseDeviceOrientation(false); // don't
|
|
```
|
|
|
|
### UI Orientation
|
|
|
|
Within a Camera app, it's common to rotate buttons and other UI elements as the device is tilted around.
|
|
We offer a handy callback giving you the right rotation that should be applied to UI elements for them
|
|
to be consistent with what the user is seeing:
|
|
|
|
```java
|
|
cameraView.addCameraListener(new CameraListener() {
|
|
@Override
|
|
public void onOrientationChanged(int orientation) {
|
|
// orientation is the counter-clockwise rotation that a View should have
|
|
// based on current device tilting and native activity orientation.
|
|
}
|
|
});
|
|
```
|
|
|
|
### Location APIs
|
|
|
|
You can plug in location tags into picture EXIF (for JPEGs) and video metadata by simply using `setLocation`.
|
|
The location can be obtained from any location provider after getting appropriate permissions.
|
|
This is not guaranteed to be appended into snapshots.
|
|
|
|
|Method|Description|
|
|
|------|-----------|
|
|
|`setLocation(Location)`|Sets location data to be appended to picture/video metadata.|
|
|
|`setLocation(double, double)`|Sets latitude and longitude to be appended to picture/video metadata.|
|
|
|`getLocation()`|Retrieves location data previously applied with setLocation().|
|
|
|
|
### Undocumented features
|
|
|
|
Some features and APIs were not documented in this document, including:
|
|
|
|
- `CameraUtils` utilities
|
|
- `CameraOptions` options
|
|
|
|
For informations, please take a look at the javadocs or the source code.
|
|
|
|
|